I got every single symptom you are describing, word for word, tightness in the throat, pressure on the temples etc. WHILE i was high. But if this is still a few days after you got high, thats messed up.

If you are willing, I want you to try smoking again, and the day after, see if the symptoms are worse or have "restarted". That way you will know if it is the weed that is causing it, or something else.

This may also be because of asthma.